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Test Code UNAT Sodium, 24 Hour, Urine


Electrical Potential via Ion-Selective Electrode (ISE)

Performing Laboratory

Aspen Valley Hospital

Physician Office Specimen Requirements

Send entire 24-hour urine collection in a plastic urine container. No preservative. Refrigerate specimen during collection, and send specimen refrigerated.

Note:  1. Starting and ending times of collection are required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”

Reference Values

40-220 mmol/24 hours

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

81050 - urine time measurement

84300 - sodium

Special Instructions